If you uncomment the line "#INSTALL( DIRECTORY ${UPSTREAM_LIBS_DIR}/opt/libreoffice/lib/libreoffice/ DESTINATION ${DATA_DIR}lib/${ARCH_TRIPLET}/libreoffice )" in Click.cmake, you get a click package without libreoffice support (e.g. text and pdf files work).

If you try to open an odt file, you get the message:

If you add (e.g. in a chroot environment with clickable --container-mode) libreoffice to the dependencies, and put the line " #INSTALL(DIRECTORY /usr/lib/libreoffice/ DESTINATION ${DATA_DIR}lib/${ARCH_TRIPLET}/libreoffice )" to the Click.cmake, you get an about 80MB click package.

Again opening an example odt file, you now get:

In the logviewer you see, for example:

After adding the missing dependencies, at some point it was no longer complaining, the screen looked like: